121751552432 has 40 divisors (see below), whose sum is σ = 238155734736. Its totient is φ = 60292284416.

The previous prime is 121751552311. The next prime is 121751552519. The reversal of 121751552432 is 234255157121.

It is a super-2 number, since 2×121751552432² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11939528 + ... + 11949720.

Almost surely, 2^121751552432 is an apocalyptic number.

It is an amenable number.

121751552432 is a deficient number, since it is larger than the sum of its proper divisors (116404182304).

121751552432 is a wasteful number, since it uses less digits than its factorization.

121751552432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17285 (or 17279 counting only the distinct ones).

The product of its digits is 84000, while the sum is 38.

The spelling of 121751552432 in words is "one hundred twenty-one billion, seven hundred fifty-one million, five hundred fifty-two thousand, four hundred thirty-two".